Rotary Kiln is used basically for partial or complete splitting off and evaporating combined water from hydrates substances with the purpose of changing theifr molecular or chemical composition.

Rotary Kiln is normally direct fired and lined with refractory material.

Some of the major uses of Rotary Kilns are in the following processing; Roasting, chloridizing, Reduction and Production of Titanium-di-oxide, Alumina, Petroleum Coke, Zinc, Black ash, Magnesium oxide, Phosphate rock, Gypsum, Lime activated carbon etc.